Ball-bearing for conveyer-rollers.



t w lve/i510 Patented Mar 9 ..1lil IE5 M l A lil.. l l A..

S. L. GOLDMAN. BALL BEARING FOR GONVEYER ROLLERS.

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APPLICATION FILED MAY 11, 1908.

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SIGMUND L. GOLDMAN, OF CHICAGO, ILlfINOIS, ASSIGNOR. TO E. GOLDMAN INC., OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. l

Specification of Letters Patent.

BALL-BEARING- FOR CONVEYER-ROLLERS.

Patented-March 9, 190B.

Application filed Mlay 11, 1908. Serial No. 482,260. -v

To all 'whom 'it may concern:

Be it known that I, IGMUND L. GOLDMAN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improve ment in Ball-Bearings lfor Gonveye1'-R ollers,.

the bodyl of the roller, and is preferably composedof seamless tubing, is provided in each end with a roller bearing. In this roller-bearing the cup 4 is formed of an outer annular cupped section 5 provided with a circumferential flange 6 about its outer edge, and an inner annular cupped section 7 provided with a circumferential flange 8 about its outer edge. The section '5 is formed of spring-metal, preferably sheetlsteel, and the section 7 is formedvof the same metal but is case-hardened to enable it to withstand the wear of the 'balls 9, whereby, however, it is deprived of its springy quality. The sleeve 10, which isl preferably formed of the same metal as the cup-sections and is also case-hardened, is expanded between its ends into a circumferential flange 1l of approximately V-shape in cross-section to form the cone for confining the balls in the race' 12, and the outward extension 13, the latter serving the spacing purpose hereinafter explained. The inner cup-section is covered with an annular metal-disk 14 which is secured in place preferably by spinning its circumferential edge into a dovetailgroove 15 formed about the edge of that cup-section.

To secure a ball-bearing in an endof theA cylinder 3 it is pressed into that lend until t e flange 6 abuts against the extremity of the cylinder, such ressing into place of the cup serving to hold it in position byreason of the springy quality of the section 5 binding it by its expansion against the inner wall ofthe tube. With a roller-bearing thus secured in each end of therroller-tube, the shaft 16, the diameter of which is such as to render ita tight fit in the alining sleevesl.10 of the two bearings, is driven through them from either end of the cylinder (preferably with the latter supported vertically on end), and thereby rigidly and non-rotatably fastened centrally within lthe same.f The projecting ends of the shaftl are fastened stationarily in the sides 17, 17 of the rollers are employed, and in that positionthe outer ends of the 'sleeve-extensions 13 \bear against' the frame-sides, thereby spacing them from the cylinder-ends.

The modification of the device illustrated iange 6 into an outwardly iiarin fla Oe 6G to project from the cylinder-en s an afford conning guides for packages moving on the rollers of the conveyer, tending to extent of projection of flange 66 necessitates thefgreater length illustrated of the sleeveextension 13 than that shown in viFigpl, to project it for its spacing purpose against the respective frame-side 17 The purpose of the essential sectional construction of the cup 4: is to enable it to be .pressed into the cylinder-end to secure it in place. Where, as hitherto, this cuphas been formed of a single piece, this manner of fastening, which 1s mechanically the best, is not possible because of the necessity for case-hardening the ball-race. portion, which entire cup, whereby it is deprived of the springy quality necessary for enabling it to be pressed into place for securing it therein.

My improved construction presents the further advantage of requiring -no adjusting to relieve the balls from binding. The parts, which may be first .assembled and then inact of so introducing them` in the order of the outer cup-section, the inner cup-section,

formed to confine the balls in their races in a manner to permit them to turn freely. This condition is not impaired by driving the shaft into place from either end of the tube 3, because the lianges 6 and 8 at one end (the upper one with the tube-supported in vertical position for the shaft-driving operation, with the 'disk-cover in its opposite end bearing against the object on which the tube-is so supported) prevent the strain of driving the shaft from disturbing the relain Fig. 2 consists in extending the circular '\the frame of the conveyer-device in which maintain the packages in their course. The

is not practical without case-hardening the troduced into the tube, or assembled in the the balls, the sleeve and the disk-cover, are

fof spring lmetal a separate annular section bearing s eeves, for the purpose set forth.

'roller-bearing sleeves, for the purpose set 2g" .no

tive ositions of the ball-embracing pa and diie disk-cover at the then lower endrbsf the tube affords a stop against displacement of the inner cup-section. It will furthernore be observed that' ball-bearing may' be removed, for' any purpose, from the tube without disorganizlng the bearing.

claim:'-v l 1. In combination, a tubular roller, ballbearings in the roller-ends, each comprising a cup composed of an outer annular section within saidr outer sectlon and forming the ball-race, balls in said race, a cone-formin sleeve confining the balls therein, 'and asha extendin in the roller through the roller- 2., In combination, a tubular roller, ballbearings inthe roller-ends, each comprisin a cupcomposed of an outer'annular cupp section of spring metal, al separate annular cupped section Within said outer sectionand formin the ball-race, balls in said race, a sleeve ormin the ball-confining cone, and a 'shaft exten ing in the roller through the forth. t,

3. In combination, a. tubular roller, ballbearings in theyroller-ends, each comprisin l a cup composed of an outer annular cupped section ofspring-metal frictionally engaging the yinner Wall of the respective rollerend and provided With a flange abutting against'said end, a separate annular cupped section of non-resilient metal forming the ball-race Within said outer section and provided With a flange abutting against the same, a cone-forming sleeve confining the balls in the race, and a shaft extending in the roller through the roller-bearing sleeves, for the purpose set forth.

4. In combination, a tubular roller, ballbearings, in the roller-ends, each comprising a cup com osed of an outer annular cupped section o spring metal provided with a flange abutting against the respective roller end, a separate annular cupped section, forming the ball-race Within said outer secroller-bearing sleeves,

cone and extended at its tion and provided with a flange abutting against the same, balls intsaid race, an an- 1 metal provided with an outwardly roject- .ing package-guiding circumferentia ange,

a separate annular cupped section within said outer section and forming the ball-race, balls in said race, ment to form the `ball-confining cone, and a shaft extending in the `roller through the forA the purpose set forth.

6. In combination, a tubular roller, ballbearings in the roller-ends, 'each comprising a cup composed of an outer annular section of spring metal, a separate annular section Within said outer section and forming a ball-race, balls in said race, a`sleeve having :an enlargement between its ends to form a ball-con ing cone, and exteniied at its outer end beyond the roller for the described spacin purpose, and a shaft extending in the ro ler through and beyond lthe rollerbearin sleeves.

7. T e combination, for forth, of a tubular roller, the roller-ends, posed of an outer annular cupped section'of spring metal providedwith a flange abuttlng against the respective roller-end, a separate annular cupped section forming the ball-race within said outer section and provided with-` a flange abutting .against the same, a sleeve havingan enlargement between its ends lto form the ball-confining outer end beyond the roller for the described spacing-purpose, and a shaft extending inthe roller through and beyond the roller-bearing sleeves.

sIGMUND L. GOLDMAN.

the purpose set ball-bearings in a sleeve having an enlarge- 4 each comprising a cup com-l g through said section of spring l 

